package com.android.wnba.provider;

import com.android.wnba.util.db.SqlArguments;

import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;
import android.text.TextUtils;

public class WnbaDBProvider extends ContentProvider {
	public static final String AUTHORITY = "com.oppo.upgrade.upgrade";

	public static final String COL_ID = "_id";
	public static final String SETTING_COL_KEY = "key";
	public static final String SETTING_COL_VALUE = "value";

	public static final String TABLE_SETTING = "upgradesetting";

	// public static final Uri CONTENT_URI_SETTING = Uri.parse("content://"
	// + AUTHORITY + "/" + TABLE_SETTING);

	private static class DatabaseHelper extends SQLiteOpenHelper {
		public DatabaseHelper(Context context) {
			super(context, DB_NAME, null, DB_VERSION);
		}

		@Override
		public void onCreate(SQLiteDatabase db) {
			db.execSQL("CREATE TABLE " + TABLE_SETTING + " (" + COL_ID
					+ " INTEGER PRIMARY KEY AUTOINCREMENT ," + SETTING_COL_KEY
					+ " TEXT ," + SETTING_COL_VALUE + " TEXT);");
		}

		@Override
		public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
			// db.execSQL("DROP TABLE IF EXISTS " + TABLE_SETTING);
			onCreate(db);
		};
	}

	public static final String DB_NAME = "Upgrade.db";
	private static final int DB_VERSION = 1;

	private static final String PARAMETER_NOTIFY = "notify";

	private SQLiteOpenHelper mOpenHelper;

	@Override
	public int delete(Uri uri, String selection, String[] selectionArgs) {
		SqlArguments args = new SqlArguments(uri, selection, selectionArgs);

		SQLiteDatabase db = mOpenHelper.getWritableDatabase();
		int count = db.delete(args.table, args.where, args.args);
		if (count > 0)
			sendNotify(uri);
		return count;
	}

	@Override
	public String getType(Uri uri) {
		SqlArguments args = new SqlArguments(uri, null, null);
		if (TextUtils.isEmpty(args.where)) {
			return "vnd.android.cursor.dir/" + args.table;
		} else {
			return "vnd.android.cursor.item/" + args.table;
		}
	}

	private void sendNotify(Uri uri) {
		String notify = uri.getQueryParameter(PARAMETER_NOTIFY);
		if (notify == null || "true".equals(notify)) {
			getContext().getContentResolver().notifyChange(uri, null);
		}
	}

	@Override
	public int bulkInsert(Uri uri, ContentValues[] values) {
		SqlArguments args = new SqlArguments(uri);

		SQLiteDatabase db = mOpenHelper.getWritableDatabase();
		db.beginTransaction();
		try {
			int numValues = values.length;
			for (int i = 0; i < numValues; i++) {
				if (db.insert(args.table, null, values[i]) < 0)
					return 0;
			}
			db.setTransactionSuccessful();
		} finally {
			db.endTransaction();
		}

		sendNotify(uri);
		return values.length;
	}

	@Override
	public Uri insert(Uri uri, ContentValues values) {
		SqlArguments args = new SqlArguments(uri);
		SQLiteDatabase db = mOpenHelper.getWritableDatabase();
		final long rowId = db.insert(args.table, null, values);
		if (rowId <= 0)
			return null;

		uri = ContentUris.withAppendedId(uri, rowId);
		sendNotify(uri);

		return uri;
	}

	@Override
	public boolean onCreate() {
		mOpenHelper = new DatabaseHelper(getContext());
		return true;
	}

	@Override
	public Cursor query(Uri uri, String[] projection, String selection,
			String[] selectionArgs, String sortOrder) {
		SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
		SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
		qb.setTables(args.table);

		SQLiteDatabase db = mOpenHelper.getReadableDatabase();

		Cursor result = qb.query(db, projection, args.where, args.args, null,
				null, sortOrder);
		result.setNotificationUri(getContext().getContentResolver(), uri);
		return result;
	}

	@Override
	public int update(Uri uri, ContentValues values, String selection,
			String[] selectionArgs) {
		SqlArguments args = new SqlArguments(uri, selection, selectionArgs);

		SQLiteDatabase db = mOpenHelper.getWritableDatabase();
		int count = db.update(args.table, values, args.where, args.args);
		if (count > 0)
			sendNotify(uri);

		return count;
	}
}